This is spot on. All you need is a serviceable keeper and they should be able to get by.
i don't know, i think having a good goalie is pretty valuable. Now I would never want a DP goalie, given the type of goalie MLS teams can sign, but does anyone really want Kendall McIntosh to start for us if Meara gets hurt? We for sure need another first team goalie imo before the season starts to at minimum compete for the backup job and ideally compete and push Meara.
You can still fill out your squad completely with a TAM goalie that improves that position (i.e. Brad Guzan is a TAM goalie). Everyone is only against this because they don't trust Red Bull to make any signings besides this, which is fair. But in a vacuum the signing isn't bad and may be a good one if the guy has the right skill level. He has very good experience though for his age.