I have a bit of a mixed opinion on this feature. I will first report my pros as I see them, but then the potential cons I see as well. As an opening caveat I will emphasize that everything in this post is opinion.
For a TLDR version please scroll to the end of the post where I will try to summarize quickly.
First the pros. Having this available will give people a better idea of what teams by TP they are being potentially beaten by, this can allow people a better appreciation for the strength of their defense team. Ultimately this would allow people to try to refine their war team with better data in mind.
Pro B. This will allow people to see a sort of glimpse into the depth of the opposite alliance, but may not telegraph each and every hero they have.
Cons, (Apologies if this runs long)
Cons to pro A. There will likely be lots of questions such as, "How did a team of 2,— power beat my team of 35-- power. Especially from newer players who might not be as aware of tactics such as color stacking or using tank counter strategies.
The other potential con is players who don’t understand the randomness factor may try to make another… unfortunate mistake… in arguing that clearly player x or player y must clearly have better boards. As a notice many of us know and accept that sometimes luck is a factor, but we also know that good strategy can and will counter luck more than 98% of the time. I believe Senneca once said luck is where preparation meets opportunity, In English we make our own luck, but many players seem to have conspiracy theories abound that might be fueled and make the forum less pleasant to visit seeing all the new "War stats, what the ‘Devil’ type of threads complaining about luck etc.
Cons B Teams of 3500 to can consist of heroes with virtually no emblems or can be seen with a team that has one well embalmed 5* and a few 4*. Shortly put these team powers do not truly reflect team capability and showing that a player has teams capable of scratching 3700, but usually attacks with average to of say 3200 and still wins might result in more complaints of a similar nature.
Cons C There is no pro to this some people may wish to keep their rosters private and not have it become known what they choose or don’t choose to spend.
Con D Those who are really enthusiastic about data collection will want specifics that border on invasion of in game privacy. For example if someone doesn’t want people to know what teams they have they might simply choose not to make pre created teams. All fights, both raids and war are situational and if someone chooses to not use their most powerful teams this might bleed into problems already mentioned in con A.
TLDR: A feature summarizing someone’s war team power may be acceptable if it is not able to pry too deep into specific heroes. Handled correctly it can become a great tool that can help people get better at the game. Handled incorrectly it can be a disaster and needs to be considered gingerly before implementing it.
As a final note I cannot vote for this festure, but I don’t think I would be too annoyed if SG ultimately chose to implement a non-revealing version of it that still allows hero combinations to remain hidden.
Good luck and enjoy the game everyone.