Bal waterproofing kit? - Tile Advice

[penguinlicker]

Good Morning,

with the bal waterproofing kit, you do the following:

prime with apd
apply waterproof coating
apply polyester tape
apply waterproof coating

my question is, if the tape is just held on by the waterproof coating which feels like a silicone, then why don’t the weight of the tiles just pull the tape off?

thank you if you can help