Yes absolutely but notice one spell slot is not the equivalent of an 11th level ability. What do say many casters get at 11th level? Access to sixth level spells. Rogue gets good skill check minimums for his proficient skill checks and wizard gets access to sixth level spells. There are difference to be sure, but the issue of auto beat locks or auto hide was started back at 3rd, not 11th. Especially if the worry are his expertise skills.Everything you mention, except the cantrip, requires a spell slot. Reliable Talent requires no expenditure of resources.
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