Should Gathering Storm give you bonuses more frequently (i.e. every 5 minutes after first 10)?

I'm finding it harder and harder to justify taking Gathering Storm due to how much the meta favors quick and decisive wins over long, drawn-out games. As such, Scorch just ends up being better for lane pressure. Part of the issue, I feel, is that Gathering Storm only gives you extra bonuses every 10 minutes, which leaves long periods where your opponents can exploit the waiting period, and requires you to wait an agonizing period to get full benefits.

IMO, Gathering Storm would be much better if it were to update every 5 minutes instead of 10, but only starts giving you bonuses after the first 10 minutes. I'd have the same values at each 10 minute mark, so it wouldn't actually be any stronger at, say, 30/40/50/etc. minutes, but it would give you a "halfway bonus" every 5 minutes.

For example,

15 minutes = 16 AP or 9.5 AD 25 minutes = 36 AP or 21.5 AD etc.

Unless, of course, Riot intends for Gathering Storm to have such a long delay between improvements.