Akkar interview questions

I was headhunted for the role and agreed to discuss in more detail. Casual phone interview followed by a very lengthy task to complete. Second interview was constantly rearranged due to issues on their side. When it did eventually take place there was no real acknowledgement of the task that was completed and the interview was less than 30 mins in total so couldn't even go into much detail. Afterwards I got a fairly standard email saying they had gone for someone else and I had to ask for more specific feedback which they said was simply someone more qualified was offered the role. Since then you can see on LinkedIn that this is not the case and they most likely just went for someone that would accept a much lower salary for the role.