If I understand this code correctly, what happens is that there is a time bound limit for how long the validation is  suspended for based on the timing of the pause on the command? If so this isn't really ideal

1. It is extremely inefficient, if it takes 1ms to run the validations, this causes a 20x minimum slow down

2. It is likely to result in test flakiness, as we want to improve the performance of the tests, these pauses are likely to get shrunk, resulting in some of the tests not completing in time and returning false, this is just bad news

3. It makes debugging the tests more difficult, as they don't executed in a linear flow, and have ms level timing dependencies

4. It creates extra work for the TDs, who have to guess how long their validation code is going to take, and that the validation code has to be written in a more complex manner than necessary.