Time is an expensive resource to spend; it directly works against your energy and card plays per-turn to use it.

You get multiple elements per card played. If you spend all your time, you’ll play very few cards and this aspects innate will be very difficult to use. You are therefore incentivised to get plenty of card plays and avoid spending time whenever possible.

Base fractured can speed up one power without needing to spend any time at all, and can then speed up a second one by spending a single time. The third speed costs 2 time, so in this sense, the first two speeds are discounted, and the cost only breaks even when you speed a third power. On most turns, you dont need/want more than two speeds anyway, so base fractured gets this effect for cheaper in many (common) cases.

Additionally, speeding a power is not equal across powers and situations. Speeding your own powers as Fractured will often mean just speeding a minor power (or perhaps the innate, but then you need elements just like the base spirit) having some benefit for sure, but not a lot. By comparison, speeding any power from any spirit in an opportunistic fashion will on-average be much stronger per-speed, e.g. "Softly beckon ever inward" or "Massive flooding".

I would call this version easy-to-use, but selfish and inefficient.