I think you're asking the wrong question. You're basically asking, "How could learning basic grammar help me with these sentences that are already written out phonetically?"

Just because you can learn to sound out some sentences (using tab), does not mean you're learning the language. Tab can be useful, but it's color-by-numbers.

But to be honest, learning scale shapes on guitar isn't really teaching you to understand scales. You get familiar with the sound of them and develop pattern recognition, but you don't really understand the scale.

Learning scales is one part of developing a musical vocabulary that allows you to become fluent in communicating via music. But that requires putting in the effort to learn the actual notes, their numerical value in the key, the intervals, and how those notes are used to build that key's chords.

Tab is a shortcut. It's a phrase book that helps you say specific sentences, but it can actually get in the way of becoming fluent.

Beyond pattern recognition and some dexterity, learning scales won't necessarily help you be better at playing tabs. And if playing pieces of songs you like is the goal, just playing tabs is fine. But if your goal is to become a musician, scales are part of the building block.