I personally would remove Taph stack nerfs (might be bias but Ill explain why)
Currently Taph is good, especially if you know good placements and when to use in chase or lms but the buffs seem unneeded in most cases , when the release dropped it was only that bad because you would go against entire lobbies but now that you dont its a downgrade to have more than two Taphs , sometimes even the second is bad .
Imagine this , youre in a lobby with two other Taphs , you have a nest up and killer comes near . They set off all three tripmines at once , your setup is way weaker than it should be , wasting two survivor slots for three Taphs who do less than one alone . Since the tripmines went off at the same time and dont stack they are less useful than if you were only using one with only one Taph .