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Nessov's Therizinosaurs

I recently read Nessov's 1995 monograph "Dinosaurs of Northern Eurasia".

Russian original here: http://cretaceous.ru/files/pub/nesov1995_dinoz_sev_evrazii.pdf
English translation here: http://paleoglot.org/files/Nessov%2095.pdf

Nessov lists a number of discoveries of "segnosaurs" (now therizinosaurs) from various places in the former USSR. At the time, the group's phylogenetic position was still controversial, and they were widely thought to be relict prosauropods.

He puts forward the speculation that small primitive therizinosaurs from the Coniacian of Uzbekistan hung like sloths from sycamore trees and ate wasp larvae. This is an attractive idea, and the Russian original includes a speculative life reconstruction, which is wonderfully goofy-looking: http://i.imgur.com/nJngnbI.jpg

I'm wondering two things:

1. Given that we now know that therizinosaurs were maniraptors, and we even have good fossils of primitive taxa like Falcarius, how feasible is Nessov's "sloth" hypothesis today? (I'm guessing not very.)

2. Has the material from Uzbekistan ever been described or figured anywhere else? It seems to me that it would still be quite scientifically valuable.