jumping through what was in both cases about 7/8 cloud cover;
Not knowing the airspace classification you were flying in but dropping through cloud is permitted in controlled airspace. At 7/8ths I guess they were descending through a Hole? if outside controlled airspace - and at any rate, presuming calls were made by the pilot that dropping was in progress, why would you be flying over/through the 'descent' area?
once had a skydiver land in front of me as I was taxying a long distance from the PDZ
Once again - knowing chutes are descending onto an airfield that extra caution would be taken, they do get blown away from the landing zone from time to time particularly if they have exited the aircraft too late/early or the upper winds are different to assessed.