A Jagex Miscue

I was reading through some of the Q & A's with some of the staff from Runescape, and I had one thought some people might not have come up with: Jagex screwed up certain skills. I for one don't skill much, but when they said they are going to make smithing and mining relevant again I had to think about it. Consider this how will they upgrade a skill that requires a level of 99 to make Rune legs/skirt, platebody and two hander? If they came up with another ore such as Dragon why should making its best items be just 99? I was wondering if back in the classic days they thought that Runite was going to be their strongest mineable ore forever? Now that they want to upgrade these skills will certain examples like this hinder their progress?