At face value yes, but looking deeper...maybe not
If you review both the meta you link on required comments as well as the FAQ V2blast linked to in the comments of the question, you'll note that there are very good reasons as to why we don't necessarily want to encourage comments.
Which seems hypocritical in some ways because we always want to improve our answers so that they are both better received by the community as well as potentially more relevant to the querent.
Ultimately, we vote as we want to vote. And if users want to provide explanation, they are free to do so in the manner recommended - and many will do so, and do so without being asked. For those that don't want to give a comment with their vote, they shouldn't feel like they need to because someone left a comment requesting it.
People understand that if they give feedback, the answer can be improved. And many are vocal and not shy to say something. But if they don't want to, that's totally fine as well.
Asking for feedback just isn't necessary. And if feedback is given, I'd also generally recommend either using it in your answer or asking for it to be deleted as not necessary. Debating in the comments about it may not be fruitful and returns us back to why encouraging comments can be problematic.
Looking beyond rep
Getting downvotes is still a bummer, though. We want to know why so that we can try to fix it and turn that negative rep into sweet positive rep. Rather than asking for feedback, I'd recommend reviewing the positively reviewed answers against yours to see where they diverge. Sometimes it's things you can fix. Maybe it's in your use of support, tone, language, or something unrelated you notice. And you can then apply that to either your current answer or your next one.
But sometimes it's also just pure disagreement. If you believe in your answer, then you're not going to fix that. Diversity of opinions makes us strong, and just because you got some downvotes, maybe you got upvotes, too. And those upvotes are both worth more and tell you there are some like-minded folks, too.
And finally, there's always the possibility that you can change your mind. I've definitely written answers and later realized my approach, logic, or reasoning wasn't the best and end up agreeing with someone else that my answer was problematic - even when I was really confident in my initial approach.