Nice workaround!
But I have good news regarding this matter - I was able to devise a condition trigger, which can be exported into script and placed in a trigger group. Then you can refer to that TG with ENV_CONDITION_TRIGGER_GROUP (as part of a MultEnvCondition script, for example) and it will make TRNG prioritize the climbing animations on 4 click sloped ceiling with monkey

Naturally, the Animation script will still work normally, if the ceiling is less than 4 clicks steep.
This new update, which will also add the ability to grab the climbable slope from an upwards jump (and not just a forward jump), will hopefully be sent for retesting by beta testers in the upcoming week. And hopefully released soon after

One more feature that has been requested - a condition for testing that Lara is currently slope climbing (similar to TRNG conditions that Lara is currently climbing ladders or monkey swinging) will also be included