I don't think I'd like a solution where named subs disappear as anon subs in hashes, using strings to look them up. Yeah, sure, strict is happy, but making strict happy isn't a goal. You've lost some of the benefits strict give you. Using a dispatch table just means you're doing what Perl is doing for you (using stashes) when using symbolic references - with the hash playing the role of a namespace.
I would use:
my $sub = \&do_this;
print $sub->("Fred");
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