I don’t see where it is harsh, i mean, i am a sorc, i don’t stand in place while fighting, be it higher lv mob or low level, there is no need for that, if one is afk grinding or farming, he will leave a macro program doing the pot using for him, since he is not moving, after 2 pots the next time the macro try to use the pot again it won’t work and the summon will dry the caster SP till it desapear and will stay in a true AFK state (just standing there, and pray him that the area mobs aren’t aggressive).
People ask for fair play but don’t want to be harsh on who is not being fair? What’s that? lol
The cast time for summon is instant, indeed can be interrupted if you take a stun like or knockback/knockdown attack, but since the afker is macroing the pots, why he would need to recast?