More power to you if you have the budget to spend time writing code that someone else has already written.

That’s very true. A colleague recently started using the same method and is achieving bundles and dependencies orders of magnitude smaller. As a result, he has to care less about security, build times and build breaks and spends more time coding. Developers have unlearned to build basic functionality apparently, especially in the front end area.

It’s not really a question of unlearning, its more of a question of economics.

Sound software construction techniques are one thing, but convincing someone to pay you to reinvent the wheel is another.

Especially when you consider that budgets for new, bespoke brand websites can start as low as about a couple of days pay for a senior developer.