What a bunch of killjoys. Shohei Ohtani goes five weeks without hitting and suddenly his entire being as a two-way player is under examination again. About whether he should continue playing both ways in a season in which he turns 32. About whether he should become a full-time hitter. The questions are being asked for a reason – the Dodgers have lost 10 of their last 17 games and Ohtani is on pace for a 27-homer season – but they also miss the point. Shohei Ohtani’s entire being as a two-way player is under examination again. AP When the Dodgers signed Ohtani as a free agent, they entered the dream-chasing business. Championships were a part of that. But so was providing Ohtani with a platform to do something unprecedented in the sport’s history. Which is why manager Dave Roberts might occasionally relieve Ohtani of his hitting duties on days he pitches but won’t entertain any major changes in how he is used.…