The caveat/mistake here is if you treat it / think that it is equivalent to if a then b else c. That is not the case if b has any chance of failing.

Sure, you can try to solve that problem by using a one-word alternative for any multi-word phrase, but that's not always possible: there isn't always a single word that can be used for every possible phrase you may have.

Adjusting the letter-spacing and margin between items in your list isn't that hard and would be better in the long run since it gives you a scalable, general solution.

"Log in" is the only correct way to spell the verb, and the only way to be consistent with 1000s of other phrasal verbs that are spelled with a space in them.

We don't need nor want an exception to the general rule just for "login" just because so many people have made that mistake.

This should maybe read "We hope that if we promote this kind of collaboration within the scientific process" to emphasize the specific kind of interactions you mention earlier in the paragraph, whereas the way it is written sounds like collaboration in general.