Lots of upside to using the check and only one theoretically downside(tangos MAY hear it).
But there is a downside, at least a theoretically. So we should use the check only when necessary.
It's not necessary to check the door again 10 times after you found it locked at the first attempt...it won't change unless your steady jounce makes a tango opening the door from the other side.
It's also not necessary to check the lock if the EL plans to use c2 (or bsg) anyway (because the team is low on cover or he wants additional distraction for the entry).
And if yo ask me, on stealth there is no need to check the lock until the whole team is finally ready for entry. Speed doesn't really matter. So one can simply try to open the door normally.
Still it's a useful option to speedup dynamic movements and prepare double entries.