Some quibbles about The Night Manager - but it is entertaining

The Night Manager continued to hold our rapt attention right through to the end, not so much because we liked any of the "good guys" (well, we did like the British agent, Angela) as we loathed the "bad guys," especially Hugh Laurie's Dickie Roper. The plot throughout is taut and tense, with a lot of surprise twists - hats off to le Carre there - but ultimately, as w/ many other works in the spy genre and le Carre's in particular, at the end you just say: Really? Is anything about this story line probable or even possible? We see the most elaborate scheming across international borders with embedded agents - an amateur agent no less - surviving all sorts o misfortunes and betrayals. Isn't there an easier way to stop this illegal arms sale and delivery? And for that matter. why would a guy as shrewd and devious as Roper not realize from the get-go that something's amiss about the protagonist, John Pine - that he's got to be a spy for someone? Why would he entrust this near-stranger w/ a $3000-million illegal arms deal? Also, to put it kindly the romantic subplot is not le Carre's forte, and in this series in particular we can't buy for a second Pine's attachment to the statuesque bubblehead, Jed. Putting these quibbles, and maybe they're more than quibbles, aside, though, the series is entertaining over the course of its 6 episodes, which is much more than I can say for most of what's out there, so it may be worth your time.