ASW – Alternative hero leveling.

Any changes must be justified. What else did you expect?

When communicating, for example, in an online chat with some strong player, justification is not required ;)

Regarding the topic, the meaning of the phrase
escapes me (double "not"). Am I translating correctly: "It would be logical to give the native summoning magic, but it is illogical to make it easy to obtain a shield"?

If they gave the native summoning magic, it would be logical not to give a shield in the guild, which is already illogical (like teleport, haste, stone skin)

And the second question, is changing the native magic schools (for example, Earth & Energy to Summoning to Darkness) part of the project's plans?

The city can have its own native schools without an intermediary (race). Most likely, the emphasis will be on the city classes, rather than on the race. However, knowing the developers, it might not work (the option exists, but whether it actually works...)

Is changing the chances of obtaining one or another skill part of the project's plans?

This will definitely happen.