New experimental version! This one is actually experimental - I need feedback!
This update introduces a conditional activation group that will boot you back to the stock Touch Bar only if it thinks that the autofill/autocomplete interface is being shown. I'm not 100% certain if I have the correct selection parameters, but it's a start - and it only works inside Apple's own apps, for now.
This gives you instant access to autocomplete and autofill, as well as the stock emoji picker, three of the only redeeming parts of the standard Touch Bar. As soon as you deselect the text field, GC-BTT comes right back. I've found that disabling Apple's Control Strip entirely provides a better experience.
Please test this behavior and let me know how you feel about the overall experience over in the help & feedback thread 
GoldenChaos-BTT 2.670 (Experimental) Changelog
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[Autocomplete] Added conditional activation group that temporarily disables BTT if the user is in one of Apple's own apps and has a text area in focus
- This theoretically gives access to autocomplete, autofill, and the emoji picker from the stock Touch Bar without completely compromising the GC-BTT experience and will need a lot of refinement.