This article on clearing cluster munitions makes an interesting read.
BiB is important in relation to Ukraine's planned use, as they will be able to map the areas where they use them, as the UK did in the Falklands. Their biggest problem is going to be clearing the ones that Russia has used in Ukraine, because Ukraine is not going to have as accurate information on where they have been used, plus the dud rate is claimed to be over 30% compared to about 2.5% for the ones the US are supplying, so a much more time consuming job.
Ukraine is going to be using the US supplied ones on the battlefields, these will be no-go areas for some years after the war, because of the sheer amount of cluster munitions already used, and thousands upon thousands of landmines, that need clearing. I am unconvinced a few more cluster munitions are going to play a massive role in the overall clear-up operation.
Whilst I am far from cheering on more cluster munitions being used, they don't seem likely to change the danger level on the actual ground by much, and if they are effective in breaking the Russian lines, and bringing forward the likely end to this bloody war, they will probably save a lot more lives, than they will take during the clearance years.
Analysis in English on World and 28 other countries about Gender, Mine Action, Epidemic and more; published on 4 Nov 2020 by HALO, MAG and 2count other organizations
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