Not very mad.
On one hand, HGSS were awesome because they were remakes of GS that included some of the cool extras that Crystal had. If ORAS were to follow suit, we'd have gotten a Battle Facility, and it would have been a fun addition.
On the other hand, we have the Pokemon-GL now, which I prefer, hands-down, no question. Frequent online tournaments with varying rulesets, ladders, and recorded statistics are way better than anything the battle facilities have given us before. Ranked Player-Player interaction is more valuable to me than various rulesets where the NPCs start to cheat after I clear a certain number of rounds "just because".
In a perfect world we would have both, but time and money are finite resources and GameFreak had a budget and put it towards other things, and I respect that decision because ORAS are honestly among the most complete and diverse array of content in the series to date, barring only HGSS maybe.
How many people actually played the Frontier in the games they were in, when those games were current and it wasn't an anti-ORAS talking point? I know I played a bit but I've spent at least 10x the time interacting with the Pokemon GL in some fashion, and I played the Frontier way more than any of my other Pokemon-playing friends.
