[thanatropism]

There's really two camps of VBA, the "application builder" and the "spreadsheet functionality" camps.

Application builders are trying to build interfaces for things that will run in a non-spreadsheet (i.e. non-reactive, not always-recalculated-to-be-consistent) mode. That's bound to be brittle, because that's not what Excel is for.

Spreadsheet functionality extending people OTOH write almost 100% what in ordinary programming is known as "pure functional style". Too often to write complex formulas in Excel (even something as simple as the Black-Scholes equation) people have to use multiple cells to keep things tidy and debuggable. You can use VBA functions for that. You can also write short loops to "solve for zero" with the bisection or Newton method etc. as long as they don't run for long. None of that interferes with spreadsheet semantics.