Seems that the limitation is imposed by Sun Virtualbox:
WARNING: CIS does not work properly in VirtualBox because of the limitations imposed by this virtual machine(Vectored Exceptions fail). So please test it with another VM software.
Virtualbox is not the industry standard for VM machines VMware is and they always develop their software to work properly with most software. No one has problems with VMware that I know of. Also why are you asking if comodo or sun is telling the truth? You even proved that Sun is the one with the problem becasue you provided a link to avast that said sun is the problem.
I prove nothing.
Problems are very different one from another.
Most probably the avast firewall problem was corrected by avast side (which development team is serious).
VMWare is a bloatware of services/drivers/network mess…
I still have some hope on both companies to work together on this.
Considering your stated objective (getting Comodo & Sun working together), I do not believe that finding out which one of them lied first (the logical conclusion/implication of your question/subject) to be a good basis of any possible future relationship and/or dialogue between them.
In short. Nice attention grabbing subject. But, poorly thought out given your objective. OK?