Where did you read what I wrote about hacking SLIP39?
I never used the word hacking.
I said that if you think that you or some other attacker can gain access like in your example, than show this real life example to Trezor devs.
They are going to reply you much better than most users in forum.
I'm not criticizing the SLIP39 standard, I created a post for people who buy a Trezor wallet and will be faced with choosing a backup type when setting it up.
To me it sounded like you said that SLIP39 is weaker than BIP39.
I wrote before about changes with new Trezor HW devices, and there is always option to choose old BIP39.
it should be said that Trezor paper backups in new devices are all SLIP39.