Sorry I haven't been clear, my objection is that your proposed change isn't going to make the people that skip T1 attacks take them (it won't) but it WILL make the already to easy early levels even easier, learning to end manage isn't hard, and basically completely fixes the problem you are trying to fix. I take and have in my attack chains on every toon I have the t1 attacks, usually 6 slotted before any other power in fact, so my power choices would be completely unaffected by your change, however, the people who avoid them are NOT going to suddenly select them because they don't use end, the end cost isn't why they skip them.
I'm not trying to change your mind, if you can convince the Dev's it will happen, I am supplying them with the counter argument that it will achieve nothing positive thats all