Perfection in materials?

As someone from a legal background, I am used to endeavouring for perfection in the documents I draft or review. Many successful entrepreneurs and investors suggest it is more crucial to get to MVP and then fix on the go. As I move more into the high-tech world, I am curious as to whether the MVP + fix model applies to dealing with (potential) investor materials. For example, I have been asked to review a company's seed-round investor deck over several iterations and on each occasion I have found grammatical nit-picks. I assume these may turn an investor off but perhaps it would be better to just get the deck out there and worry less about grammar (I am not talking about glaring mistakes but more at the highest levels)?